Participants: Eugenia Kovatcheva, Boyan Jekov, Willian Dimitrov, Veselin Tselkov, Vladimir Yotsov, Georgi P Dimitrov, Elena Shoikova, Ivan Ivanov, Ivanka Pavlova, Irena Peteva, Krasimira Ivanova, PhD Student Natalia Palikova, Roumen Nikolov, Stoyan Denchev, Taisiya Vladimirova, Tsvetlin Yovchev, Bella Tetevenska, Georgi G. Dimitrov, Nikolay Stoyanov

Participants: Georgi P Dimitrov, Alexander Kirkov, Boyan Jekov, Vasil Totev, Willian Dimitrov, Galina Panayotova, Desislava Stoeva, Eugenia Kovatcheva, Elena Shoikova, Ivan Garvanov, Ivan Ivanov, Ivanka Pavlova, Irena Peteva, Katia Rasheva-Yordanova, Magdalena Garvanova, Pepa Petrova, Tereza Trencheva, PhD Student Milena Koleva, Ilian Magdalenov, PhD Student Svetlana Syarova, Lyubomir Gotsev, Aleksandar Parvanov, Daniela Pavlova, Iva Kostadinova, Iglika Getova, Inna Dimitrova, Stefka Toleva-Stoimenova

Participants: Evgeni Manev, Plamen Bogdanov, Alexander Kirkov, Asen Zahariev, Atanas Nachev, Vasil Totev, Willian Dimitrov, Veselin Tselkov, Vladislav Lazarov, Volodya Tsvetanov, Galina Panayotova, Georgi P Dimitrov, Georgi Sredkov, Grudi Angelov, Desislava Stoeva, Evgeniy Sachev, Emil Lyutskanov, Ivan Garvanov, Ivan Ivanov, Ivan Milanov, Ivanka Pavlova, Irena Peteva, Konstantin Kazakov, Magdalena Garvanova, Maria Kaneva, Nikolay Mitev, Pepa Petrova, Plamen Teodosiev, Ralitsa Yotova, Steliana Yordanova, Stefan Michev, Stoyan Denchev, Tereza Trencheva

Participants: Eugenia Kovatcheva, Boyan Jekov, Willian Dimitrov, Galina Panayotova, Daniela Pavlova, Elena Shoikova, Roumen Nikolov, Stefka Toleva-Stoimenova, PhD Student Oleg Konstantinov, Stoyan Denchev, PhD Student Svetlana Syarova, Alexander Kirkov, PhD Student Ilia Vukarski, Vladimir Yotsov, Georgi P Dimitrov, Iva Kostadinova, Ivan Garvanov, Zahari Galabov, Ivanka Pavlova, Katia Rasheva-Yordanova, PhD Student Kristiyan Aleksiev, Pepa Petrova, Irena Peteva, Kristina Bosakova, Iglika Getova, Hristo Tsolov, Rumyana Mancheva, Viktoria Spasova, Mariana Baneva, Krasimira Ivanova, Taisiya Vladimirova, Veselina Voynova, PhD Student Milena Koleva, Asya Barutchieva

Participants: Eugenia Kovatcheva, Boyan Jekov, Willian Dimitrov, Galina Panayotova, Daniela Pavlova, Elena Shoikova, Roumen Nikolov, Stefka Toleva-Stoimenova, PhD Student Oleg Konstantinov, Stoyan Denchev, PhD Student Svetlana Syarova, Alexander Kirkov, PhD Student Ilia Vukarski, Georgi P Dimitrov, Iva Kostadinova, Ivan Garvanov, Ivanka Pavlova, Katia Rasheva-Yordanova, PhD Student Kristiyan Aleksiev, Pepa Petrova, Irena Peteva, Iglika Getova, Veselina Voynova, PhD Student Milena Koleva, Viktoria Angelova, Ralitsa Yotova, Evgeniya Sendova, Ralitsa Nikolova, Asya Barutchieva, Taisiya Vladimirova, Krasimira Ivanova, Mariana Baneva, Viktoria Spasova, Vladimir Yotsov, Zahari Galabov, Kristina Bosakova, Hristo Tsolov, Rumyana Mancheva